NetBalancer - NetBalancer is a Windows application for local network traffic control and monitoring.
iftop - iftop does for network usage what top(1) does for CPU usage.
NetLimiter - NetLimiter is an ultimate Internet traffic control and monitoring tool designed for Windows.
vnStat - vnStat is a console-based network traffic monitor for Linux and BSD that keeps a log of network...
NetSpeedMonitor - NetSpeedMonitor is a lightweight Network Monitoring Toolbar for your Windows Taskbar
nload - Monitor network traffic and bandwidth usage in real time